/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf -tc ../../../trunk/examples/toolchains/BuchiAutomizerBplInline.xml -i /storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_8.c.bpl -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.ample-buchi-601be74-m [2025-02-17 22:46:50,051 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-17 22:46:50,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/settings/buchiAutomizer/concurrent-automaton-noLbe.epf [2025-02-17 22:46:50,111 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-17 22:46:50,111 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-17 22:46:50,136 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-17 22:46:50,136 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-17 22:46:50,136 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-17 22:46:50,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-17 22:46:50,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-17 22:46:50,137 INFO L153 SettingsManager]: * Use SBE=true [2025-02-17 22:46:50,137 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-02-17 22:46:50,137 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-02-17 22:46:50,137 INFO L153 SettingsManager]: * Use old map elimination=false [2025-02-17 22:46:50,137 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-02-17 22:46:50,137 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-02-17 22:46:50,138 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-02-17 22:46:50,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-17 22:46:50,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-02-17 22:46:50,138 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-02-17 22:46:50,139 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-17 22:46:50,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-02-17 22:46:50,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-17 22:46:50,140 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-17 22:46:50,140 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-17 22:46:50,140 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-02-17 22:46:50,140 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR [2025-02-17 22:46:50,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-17 22:46:50,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-17 22:46:50,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-17 22:46:50,430 INFO L270 PluginConnector]: Initializing Boogie PL CUP Parser... [2025-02-17 22:46:50,431 INFO L274 PluginConnector]: Boogie PL CUP Parser initialized [2025-02-17 22:46:50,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_8.c.bpl [2025-02-17 22:46:50,433 INFO L110 BoogieParser]: Parsing: '/storage/cav23-termute-examples/4_plus_thr/indep_loops_minus1_8.c.bpl' [2025-02-17 22:46:50,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-17 22:46:50,449 INFO L133 ToolchainWalker]: Walking toolchain with 4 elements. [2025-02-17 22:46:50,449 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-17 22:46:50,449 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-17 22:46:50,449 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-17 22:46:50,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,461 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,466 INFO L138 Inliner]: procedures = 9, calls = 8, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2025-02-17 22:46:50,467 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-17 22:46:50,468 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-17 22:46:50,468 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-17 22:46:50,468 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-17 22:46:50,472 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,475 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,478 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,479 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,479 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-17 22:46:50,483 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-02-17 22:46:50,483 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-02-17 22:46:50,483 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-02-17 22:46:50,485 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/1) ... [2025-02-17 22:46:50,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:46:50,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:46:50,510 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:46:50,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-02-17 22:46:50,535 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2025-02-17 22:46:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-02-17 22:46:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-02-17 22:46:50,535 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2025-02-17 22:46:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-02-17 22:46:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-02-17 22:46:50,535 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2025-02-17 22:46:50,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-02-17 22:46:50,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-02-17 22:46:50,535 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2025-02-17 22:46:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-17 22:46:50,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-17 22:46:50,536 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2025-02-17 22:46:50,536 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-02-17 22:46:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-02-17 22:46:50,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2025-02-17 22:46:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2025-02-17 22:46:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2025-02-17 22:46:50,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2025-02-17 22:46:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2025-02-17 22:46:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2025-02-17 22:46:50,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2025-02-17 22:46:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2025-02-17 22:46:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2025-02-17 22:46:50,537 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2025-02-17 22:46:50,537 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2025-02-17 22:46:50,537 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2025-02-17 22:46:50,538 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-17 22:46:50,575 INFO L234 CfgBuilder]: Building ICFG [2025-02-17 22:46:50,577 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-17 22:46:50,681 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-17 22:46:50,682 INFO L283 CfgBuilder]: Performing block encoding [2025-02-17 22:46:50,692 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-17 22:46:50,692 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-17 22:46:50,692 INFO L201 PluginConnector]: Adding new model indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:46:50 BoogieIcfgContainer [2025-02-17 22:46:50,693 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-02-17 22:46:50,693 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-02-17 22:46:50,694 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-02-17 22:46:50,698 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-02-17 22:46:50,698 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:46:50,698 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.02 10:46:50" (1/2) ... [2025-02-17 22:46:50,700 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ab97305 and model type indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 17.02 10:46:50, skipping insertion in model container [2025-02-17 22:46:50,700 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-02-17 22:46:50,700 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "indep_loops_minus1_8.c.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 10:46:50" (2/2) ... [2025-02-17 22:46:50,701 INFO L363 chiAutomizerObserver]: Analyzing ICFG indep_loops_minus1_8.c.bpl [2025-02-17 22:46:50,797 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2025-02-17 22:46:50,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 66 transitions, 188 flow [2025-02-17 22:46:50,845 INFO L124 PetriNetUnfolderBase]: 8/50 cut-off events. [2025-02-17 22:46:50,847 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2025-02-17 22:46:50,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 50 events. 8/50 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 100 event pairs, 0 based on Foata normal form. 0/42 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2025-02-17 22:46:50,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 75 places, 66 transitions, 188 flow [2025-02-17 22:46:50,861 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 67 places, 50 transitions, 148 flow [2025-02-17 22:46:50,869 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-02-17 22:46:50,869 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-02-17 22:46:50,869 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-02-17 22:46:50,869 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-02-17 22:46:50,869 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-02-17 22:46:50,870 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-02-17 22:46:50,870 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-02-17 22:46:50,870 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-02-17 22:46:50,871 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 0 states, but on-demand construction may add more states [2025-02-17 22:47:03,966 INFO L131 ngComponentsAnalysis]: Automaton has 12355 accepting balls. 134400 [2025-02-17 22:47:03,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:03,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:03,975 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:47:03,975 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:03,975 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-02-17 22:47:03,975 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand currently 135166 states, but on-demand construction may add more states [2025-02-17 22:47:08,201 INFO L131 ngComponentsAnalysis]: Automaton has 12355 accepting balls. 134400 [2025-02-17 22:47:08,201 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-02-17 22:47:08,202 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-02-17 22:47:08,207 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1] [2025-02-17 22:47:08,207 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2025-02-17 22:47:08,211 INFO L752 eck$LassoCheckResult]: Stem: "[159] $Ultimate##0-->L35: Formula: (= v_thread1Thread1of1ForFork0_thidvar0_2 1) InVars {} OutVars{thread1Thread1of1ForFork0_thidvar0=v_thread1Thread1of1ForFork0_thidvar0_2} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_thidvar0]" [2025-02-17 22:47:08,212 INFO L754 eck$LassoCheckResult]: Loop: "[125] L35-->L37: Formula: (< v_x1_1 v_z_1) InVars {x1=v_x1_1, z=v_z_1} OutVars{x1=v_x1_1, z=v_z_1} AuxVars[] AssignedVars[]" "[127] L37-->L35: Formula: (= v_x1_2 (+ v_x1_3 1)) InVars {x1=v_x1_3} OutVars{x1=v_x1_2} AuxVars[] AssignedVars[x1]" [2025-02-17 22:47:08,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:08,216 INFO L85 PathProgramCache]: Analyzing trace with hash 190, now seen corresponding path program 1 times [2025-02-17 22:47:08,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:08,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429446852] [2025-02-17 22:47:08,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:08,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:08,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:47:08,277 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:47:08,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,278 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:08,278 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:08,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:47:08,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:47:08,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:08,296 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:08,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:08,298 INFO L85 PathProgramCache]: Analyzing trace with hash 4963, now seen corresponding path program 1 times [2025-02-17 22:47:08,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:08,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557030823] [2025-02-17 22:47:08,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:08,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:08,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:08,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:08,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:08,306 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:08,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:08,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:08,309 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:08,313 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:08,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash 186592, now seen corresponding path program 1 times [2025-02-17 22:47:08,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-17 22:47:08,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653283957] [2025-02-17 22:47:08,315 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-17 22:47:08,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-17 22:47:08,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:08,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:08,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:08,322 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-17 22:47:08,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-17 22:47:08,325 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-17 22:47:08,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-17 22:47:08,331 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-17 22:47:08,376 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:08,377 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:08,377 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:08,377 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:08,377 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2025-02-17 22:47:08,377 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:08,378 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:08,378 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:08,378 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_8.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:08,378 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:08,378 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:08,387 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:08,419 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:08,419 INFO L365 LassoAnalysis]: Checking for nontermination... [2025-02-17 22:47:08,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:08,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:08,424 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:08,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2025-02-17 22:47:08,429 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2025-02-17 22:47:08,429 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:08,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2025-02-17 22:47:08,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:08,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:08,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:08,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2025-02-17 22:47:08,452 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2025-02-17 22:47:08,452 INFO L160 nArgumentSynthesizer]: Using integer mode. [2025-02-17 22:47:08,522 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2025-02-17 22:47:08,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2025-02-17 22:47:08,527 INFO L204 LassoAnalysis]: Preferences: [2025-02-17 22:47:08,527 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2025-02-17 22:47:08,527 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2025-02-17 22:47:08,527 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2025-02-17 22:47:08,527 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2025-02-17 22:47:08,527 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:08,527 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2025-02-17 22:47:08,527 INFO L131 ssoRankerPreferences]: Path of dumped script: [2025-02-17 22:47:08,527 INFO L132 ssoRankerPreferences]: Filename of dumped script: indep_loops_minus1_8.c.bpl_petrified1_Iteration1_Loop [2025-02-17 22:47:08,527 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2025-02-17 22:47:08,527 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2025-02-17 22:47:08,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2025-02-17 22:47:08,551 INFO L259 LassoAnalysis]: Preprocessing complete. [2025-02-17 22:47:08,554 INFO L451 LassoAnalysis]: Using template 'affine'. [2025-02-17 22:47:08,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:08,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:08,558 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:08,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2025-02-17 22:47:08,561 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2025-02-17 22:47:08,572 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2025-02-17 22:47:08,572 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2025-02-17 22:47:08,572 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2025-02-17 22:47:08,572 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2025-02-17 22:47:08,572 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2025-02-17 22:47:08,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2025-02-17 22:47:08,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2025-02-17 22:47:08,578 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2025-02-17 22:47:08,583 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2025-02-17 22:47:08,583 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2025-02-17 22:47:08,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-02-17 22:47:08,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-02-17 22:47:08,589 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-02-17 22:47:08,591 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2025-02-17 22:47:08,592 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2025-02-17 22:47:08,592 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2025-02-17 22:47:08,592 INFO L474 LassoAnalysis]: Proved termination. [2025-02-17 22:47:08,593 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(z, x1) = 1*z - 1*x1 Supporting invariants [] [2025-02-17 22:47:08,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2025-02-17 22:47:08,602 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2025-02-17 22:47:08,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-17 22:47:08,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1 statements into 1 equivalence classes. [2025-02-17 22:47:08,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1 of 1 statements. [2025-02-17 22:47:08,642 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,642 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:08,643 WARN L254 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-17 22:47:08,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:08,652 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-17 22:47:08,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-17 22:47:08,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-17 22:47:08,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-17 22:47:08,654 WARN L254 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-17 22:47:08,654 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-17 22:47:08,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-17 22:47:08,741 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2025-02-17 22:47:08,765 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2025-02-17 22:47:08,770 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand currently 135166 states, but on-demand construction may add more states Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:19,601 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand currently 135166 states, but on-demand construction may add more states. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 378189 states and 3226386 transitions. Complement of second has 6 states. [2025-02-17 22:47:19,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2025-02-17 22:47:19,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-17 22:47:19,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2025-02-17 22:47:19,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 1 letters. Loop has 2 letters. [2025-02-17 22:47:19,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:19,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 3 letters. Loop has 2 letters. [2025-02-17 22:47:19,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:19,616 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 124 transitions. Stem has 1 letters. Loop has 4 letters. [2025-02-17 22:47:19,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2025-02-17 22:47:19,616 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 378189 states and 3226386 transitions. [2025-02-17 22:47:34,327 INFO L131 ngComponentsAnalysis]: Automaton has 15125 accepting balls. 133890 [2025-02-17 22:47:43,480 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 378189 states to 295417 states and 2549209 transitions. [2025-02-17 22:47:43,481 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134397 [2025-02-17 22:47:45,632 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 214907 [2025-02-17 22:47:45,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 295417 states and 2549209 transitions. [2025-02-17 22:47:45,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2025-02-17 22:47:45,634 INFO L218 hiAutomatonCegarLoop]: Abstraction has 295417 states and 2549209 transitions. [2025-02-17 22:47:46,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295417 states and 2549209 transitions. [2025-02-17 22:47:56,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295417 to 214909. [2025-02-17 22:47:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214909 states, 214909 states have (on average 8.890186078758916) internal successors, (1910581), 214908 states have internal predecessors, (1910581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)